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- sql - NOT IN vs NOT EXISTS - Stack Overflow
Which of these queries is the faster? NOT EXISTS: SELECT ProductID, ProductName FROM Northwind Products p WHERE NOT EXISTS ( SELECT 1 FROM Northwind [Order Details] od WHERE p
- Should I use != or lt; gt; for not equal in T-SQL? - Stack Overflow
Yes; Microsoft themselves recommend using <> over != specifically for ANSI compliance, e g in Microsoft Press training kit for 70-461 exam, "Querying Microsoft SQL Server", they say "As an example of when to choose the standard form, T-SQL supports two “not equal to” operators: <> and != The former is standard and the latter is not
- SQL: IF clause within WHERE clause - Stack Overflow
Is it possible to use an IF clause within a WHERE clause in MS SQL? Example: WHERE IF IsNumeric(@OrderNumber) = 1 OrderNumber = @OrderNumber ELSE OrderNumber LIKE '%' + @
- How do I perform an IF. . . THEN in an SQL SELECT?
The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server
- SQL WITH clause example - Stack Overflow
353 The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query The name assigned to the sub-query is treated as though it was an inline view or
- sql - Incorrect syntax near - Stack Overflow
SELECT TOP 1000 * FROM master sys procedures as procs left join master sys parameters as params on procs object_id = params object_id This seems totally correct, but I keep getting the following error: Msg 102, Level 15, State 1, Line 6 Incorrect syntax near '' It works if I take out the join and only do a simple select:
- sql - What is the difference between JOIN and INNER JOIN . . . - Stack . . .
SELECT * FROM table INNER JOIN otherTable ON table ID = otherTable FK Is there any difference between the statements in performance or otherwise? Does it differ between different SQL implementations?
- sql server - SQL : BETWEEN vs lt;= and gt;= - Stack Overflow
In SQL Server 2000 and 2005: what is the difference between these two WHERE clauses? which one I should use on which scenarios? Query 1: SELECT EventId, EventName FROM EventMaster WHERE EventDate
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